Flute Sonata in E Minor, Op. 1 No. 1a, HWV 379: III. Largo

Recording identifiers

ISRC

DEF056900133

Release date of the album this recording appears on

2020-10-09

CopyrightID (CopyrightChains transaction hash)

0x9704090dfe871c3a6de1a3a5eec6948c8ab598e4e2c8a4cb3bd3487bea757165

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T15:22:21Z

Bitcoin block

960121

Canonical record hash

sha256:84f57ecd6bfc926035d318298057d8b06bd7cea1cfbbdb00e23f93481a600713

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEF056900133

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.